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📄 AArch64TargetParser.def(12.01 KB)
📄 AArch64TargetParser.h(4.89 KB)
📄 AMDGPUMetadata.h(17.98 KB)
📄 AMDHSAKernelDescriptor.h(7.63 KB)
📄 ARMAttributeParser.h(3.2 KB)
📄 ARMBuildAttributes.h(8.6 KB)
📄 ARMEHABI.h(3.72 KB)
📄 ARMTargetParser.def(18.94 KB)
📄 ARMTargetParser.h(8.76 KB)
📄 ARMWinEH.h(18.27 KB)
📄 AlignOf.h(1.56 KB)
📄 Alignment.h(12.95 KB)
📄 Allocator.h(16.54 KB)
📄 AllocatorBase.h(3.87 KB)
📄 ArrayRecycler.h(4.78 KB)
📄 Atomic.h(1.09 KB)
📄 AtomicOrdering.h(6.01 KB)
📄 Automaton.h(9.64 KB)
📄 Base64.h(1.84 KB)
📄 BinaryByteStream.h(9.14 KB)
📄 BinaryItemStream.h(3.63 KB)
📄 BinaryStream.h(3.75 KB)
📄 BinaryStreamArray.h(12.46 KB)
📄 BinaryStreamError.h(1.29 KB)
📄 BinaryStreamReader.h(11.01 KB)
📄 BinaryStreamRef.h(10.09 KB)
📄 BinaryStreamWriter.h(7.79 KB)
📄 BlockFrequency.h(2.41 KB)
📄 BranchProbability.h(7.92 KB)
📄 BuryPointer.h(1.03 KB)
📄 CBindingWrapping.h(1.86 KB)
📄 CFGDiff.h(9.95 KB)
📄 CFGUpdate.h(4.12 KB)
📄 COM.h(1004 B)
📄 CRC.h(1.63 KB)
📄 CachePruning.h(3.5 KB)
📄 Capacity.h(972 B)
📄 Casting.h(13.92 KB)
📄 CheckedArithmetic.h(3.71 KB)
📄 Chrono.h(5.78 KB)
📄 CodeGen.h(1.96 KB)
📄 CodeGenCoverage.h(1.18 KB)
📄 CommandLine.h(71.22 KB)
📄 Compiler.h(19.5 KB)
📄 Compression.h(1.39 KB)
📄 ConvertUTF.h(11.4 KB)
📄 CrashRecoveryContext.h(9.26 KB)
📄 DJB.h(1.05 KB)
📄 DOTGraphTraits.h(5.58 KB)
📄 DataExtractor.h(30.28 KB)
📄 DataTypes.h(775 B)
📄 Debug.h(4.7 KB)
📄 DebugCounter.h(7.01 KB)
📄 DynamicLibrary.h(5.77 KB)
📄 ELFAttributeParser.h(2.22 KB)
📄 ELFAttributes.h(1.02 KB)
📄 Endian.h(14.28 KB)
📄 EndianStream.h(1.93 KB)
📄 Errc.h(3.8 KB)
📄 Errno.h(1.45 KB)
📄 Error.h(43.82 KB)
📄 ErrorHandling.h(6.39 KB)
📄 ErrorOr.h(7.48 KB)
📄 ExtensibleRTTI.h(4.02 KB)
📄 FileCheck.h(6.69 KB)
📄 FileCollector.h(3.74 KB)
📄 FileOutputBuffer.h(3.36 KB)
📄 FileSystem.h(53.03 KB)
📄 FileUtilities.h(3.83 KB)
📄 Format.h(9.45 KB)
📄 FormatAdapters.h(3.38 KB)
📄 FormatCommon.h(2.05 KB)
📄 FormatProviders.h(15.27 KB)
📄 FormatVariadic.h(9.88 KB)
📄 FormatVariadicDetails.h(5.3 KB)
📄 FormattedStream.h(6.42 KB)
📄 GenericDomTree.h(30.89 KB)
📄 GenericDomTreeConstruction.h(63.42 KB)
📄 GenericIteratedDominanceFrontier.h(7.31 KB)
📄 GlobPattern.h(1.35 KB)
📄 GraphWriter.h(11.79 KB)
📄 Host.h(2.68 KB)
📄 InitLLVM.h(1.79 KB)
📄 ItaniumManglingCanonicalizer.h(3.17 KB)
📄 JSON.h(28.25 KB)
📄 KnownBits.h(8.35 KB)
📄 LEB128.h(5.74 KB)
📄 LineIterator.h(2.62 KB)
📄 Locale.h(223 B)
📄 LockFileManager.h(3.13 KB)
📄 LowLevelTypeImpl.h(11.94 KB)
📄 MD5.h(3.39 KB)
📄 MSVCErrorWorkarounds.h(2.62 KB)
📄 MachineValueType.h(42.37 KB)
📄 ManagedStatic.h(4.21 KB)
📄 MathExtras.h(32.81 KB)
📄 MemAlloc.h(3.21 KB)
📄 Memory.h(6.94 KB)
📄 MemoryBuffer.h(10.98 KB)
📄 MipsABIFlags.h(3.92 KB)
📄 Mutex.h(2.14 KB)
📄 NativeFormatting.h(1.64 KB)
📄 OnDiskHashTable.h(21.97 KB)
📄 OptimizedStructLayout.h(5.89 KB)
📄 Parallel.h(5.99 KB)
📄 Path.h(15.6 KB)
📄 PluginLoader.h(1.29 KB)
📄 PointerLikeTypeTraits.h(5.69 KB)
📄 PrettyStackTrace.h(4.45 KB)
📄 Printable.h(1.5 KB)
📄 Process.h(9.31 KB)
📄 Program.h(10.35 KB)
📄 RISCVAttributeParser.h(1.15 KB)
📄 RISCVAttributes.h(1.2 KB)
📄 RISCVTargetParser.def(446 B)
📄 RWMutex.h(5.65 KB)
📄 RandomNumberGenerator.h(2.29 KB)
📄 Recycler.h(3.47 KB)
📄 RecyclingAllocator.h(2.38 KB)
📄 Regex.h(4.37 KB)
📄 Registry.h(5.14 KB)
📄 ReverseIteration.h(360 B)
📄 SHA1.h(2.37 KB)
📄 SMLoc.h(1.78 KB)
📄 SMTAPI.h(16.33 KB)
📄 SaveAndRestore.h(1.02 KB)
📄 ScaledNumber.h(30.65 KB)
📄 ScopedPrinter.h(11.39 KB)
📄 Signals.h(5.22 KB)
📄 Signposts.h(1.29 KB)
📄 SmallVectorMemoryBuffer.h(2.28 KB)
📁 Solaris
📄 SourceMgr.h(10.37 KB)
📄 SpecialCaseList.h(6.01 KB)
📄 StringSaver.h(1.94 KB)
📄 SuffixTree.h(13.15 KB)
📄 SwapByteOrder.h(4.8 KB)
📄 SymbolRemappingReader.h(4.36 KB)
📄 SystemUtils.h(1.02 KB)
📄 TarWriter.h(941 B)
📄 TargetOpcodes.def(22.01 KB)
📄 TargetParser.h(4.08 KB)
📄 TargetRegistry.h(46.87 KB)
📄 TargetSelect.h(6.2 KB)
📄 TaskQueue.h(4.24 KB)
📄 ThreadLocal.h(2.08 KB)
📄 ThreadPool.h(3.44 KB)
📄 Threading.h(10.62 KB)
📄 TimeProfiler.h(3.46 KB)
📄 Timer.h(8.93 KB)
📄 ToolOutputFile.h(2.24 KB)
📄 TrailingObjects.h(15.19 KB)
📄 TrigramIndex.h(2.84 KB)
📄 TypeName.h(2.13 KB)
📄 TypeSize.h(8.53 KB)
📄 Unicode.h(2.5 KB)
📄 UnicodeCharRanges.h(3.27 KB)
📄 Valgrind.h(1.16 KB)
📄 VersionTuple.h(5.22 KB)
📄 VirtualFileSystem.h(28.28 KB)
📄 Watchdog.h(1.15 KB)
📄 Win64EH.h(4.82 KB)
📁 Windows
📄 WindowsError.h(541 B)
📄 WithColor.h(4.64 KB)
📄 X86DisassemblerDecoderCommon.h(29.39 KB)
📄 X86TargetParser.def(8.21 KB)
📄 X86TargetParser.h(3.57 KB)
📄 YAMLParser.h(16.29 KB)
📄 YAMLTraits.h(67.62 KB)
📄 circular_raw_ostream.h(4.97 KB)
📄 raw_os_ostream.h(1.29 KB)
📄 raw_ostream.h(20.82 KB)
📄 raw_sha1_ostream.h(1.29 KB)
📄 thread.h(1.33 KB)
📄 type_traits.h(6.75 KB)
📄 xxhash.h(1.92 KB)

Editing: SourceMgr.h

//===- SourceMgr.h - Manager for Source Buffers & Diagnostics ---*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file declares the SMDiagnostic and SourceMgr classes.  This
// provides a simple substrate for diagnostics, #include handling, and other low
// level things for simple parsers.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_SUPPORT_SOURCEMGR_H
#define LLVM_SUPPORT_SOURCEMGR_H

#include "llvm/ADT/SmallVector.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/SMLoc.h"
#include <vector>

namespace llvm {

class raw_ostream;
class SMDiagnostic;
class SMFixIt;

/// This owns the files read by a parser, handles include stacks,
/// and handles diagnostic wrangling.
class SourceMgr {
public:
  enum DiagKind {
    DK_Error,
    DK_Warning,
    DK_Remark,
    DK_Note,
  };

/// Clients that want to handle their own diagnostics in a custom way can
  /// register a function pointer+context as a diagnostic handler.
  /// It gets called each time PrintMessage is invoked.
  using DiagHandlerTy = void (*)(const SMDiagnostic &, void *Context);

private:
  struct SrcBuffer {
    /// The memory buffer for the file.
    std::unique_ptr<MemoryBuffer> Buffer;

/// Vector of offsets into Buffer at which there are line-endings
    /// (lazily populated). Once populated, the '\n' that marks the end of
    /// line number N from [1..] is at Buffer[OffsetCache[N-1]]. Since
    /// these offsets are in sorted (ascending) order, they can be
    /// binary-searched for the first one after any given offset (eg. an
    /// offset corresponding to a particular SMLoc).
    ///
    /// Since we're storing offsets into relatively small files (often smaller
    /// than 2^8 or 2^16 bytes), we select the offset vector element type
    /// dynamically based on the size of Buffer.
    mutable void *OffsetCache = nullptr;

/// Look up a given \p Ptr in in the buffer, determining which line it came
    /// from.
    unsigned getLineNumber(const char *Ptr) const;
    template <typename T>
    unsigned getLineNumberSpecialized(const char *Ptr) const;

/// Return a pointer to the first character of the specified line number or
    /// null if the line number is invalid.
    const char *getPointerForLineNumber(unsigned LineNo) const;
    template <typename T>
    const char *getPointerForLineNumberSpecialized(unsigned LineNo) const;

/// This is the location of the parent include, or null if at the top level.
    SMLoc IncludeLoc;

SrcBuffer() = default;
    SrcBuffer(SrcBuffer &&);
    SrcBuffer(const SrcBuffer &) = delete;
    SrcBuffer &operator=(const SrcBuffer &) = delete;
    ~SrcBuffer();
  };

/// This is all of the buffers that we are reading from.
  std::vector<SrcBuffer> Buffers;

// This is the list of directories we should search for include files in.
  std::vector<std::string> IncludeDirectories;

DiagHandlerTy DiagHandler = nullptr;
  void *DiagContext = nullptr;

bool isValidBufferID(unsigned i) const { return i && i <= Buffers.size(); }

public:
  SourceMgr() = default;
  SourceMgr(const SourceMgr &) = delete;
  SourceMgr &operator=(const SourceMgr &) = delete;
  SourceMgr(SourceMgr &&) = default;
  SourceMgr &operator=(SourceMgr &&) = default;
  ~SourceMgr() = default;

void setIncludeDirs(const std::vector<std::string> &Dirs) {
    IncludeDirectories = Dirs;
  }

/// Specify a diagnostic handler to be invoked every time PrintMessage is
  /// called. \p Ctx is passed into the handler when it is invoked.
  void setDiagHandler(DiagHandlerTy DH, void *Ctx = nullptr) {
    DiagHandler = DH;
    DiagContext = Ctx;
  }

DiagHandlerTy getDiagHandler() const { return DiagHandler; }
  void *getDiagContext() const { return DiagContext; }

const SrcBuffer &getBufferInfo(unsigned i) const {
    assert(isValidBufferID(i));
    return Buffers[i - 1];
  }

const MemoryBuffer *getMemoryBuffer(unsigned i) const {
    assert(isValidBufferID(i));
    return Buffers[i - 1].Buffer.get();
  }

unsigned getNumBuffers() const { return Buffers.size(); }

unsigned getMainFileID() const {
    assert(getNumBuffers());
    return 1;
  }

SMLoc getParentIncludeLoc(unsigned i) const {
    assert(isValidBufferID(i));
    return Buffers[i - 1].IncludeLoc;
  }

/// Add a new source buffer to this source manager. This takes ownership of
  /// the memory buffer.
  unsigned AddNewSourceBuffer(std::unique_ptr<MemoryBuffer> F,
                              SMLoc IncludeLoc) {
    SrcBuffer NB;
    NB.Buffer = std::move(F);
    NB.IncludeLoc = IncludeLoc;
    Buffers.push_back(std::move(NB));
    return Buffers.size();
  }

/// Search for a file with the specified name in the current directory or in
  /// one of the IncludeDirs.
  ///
  /// If no file is found, this returns 0, otherwise it returns the buffer ID
  /// of the stacked file. The full path to the included file can be found in
  /// \p IncludedFile.
  unsigned AddIncludeFile(const std::string &Filename, SMLoc IncludeLoc,
                          std::string &IncludedFile);

/// Return the ID of the buffer containing the specified location.
  ///
  /// 0 is returned if the buffer is not found.
  unsigned FindBufferContainingLoc(SMLoc Loc) const;

/// Find the line number for the specified location in the specified file.
  /// This is not a fast method.
  unsigned FindLineNumber(SMLoc Loc, unsigned BufferID = 0) const {
    return getLineAndColumn(Loc, BufferID).first;
  }

/// Find the line and column number for the specified location in the
  /// specified file. This is not a fast method.
  std::pair<unsigned, unsigned> getLineAndColumn(SMLoc Loc,
                                                 unsigned BufferID = 0) const;

/// Given a line and column number in a mapped buffer, turn it into an SMLoc.
  /// This will return a null SMLoc if the line/column location is invalid.
  SMLoc FindLocForLineAndColumn(unsigned BufferID, unsigned LineNo,
                                unsigned ColNo);

/// Emit a message about the specified location with the specified string.
  ///
  /// \param ShowColors Display colored messages if output is a terminal and
  /// the default error handler is used.
  void PrintMessage(raw_ostream &OS, SMLoc Loc, DiagKind Kind, const Twine &Msg,
                    ArrayRef<SMRange> Ranges = {},
                    ArrayRef<SMFixIt> FixIts = {},
                    bool ShowColors = true) const;

/// Emits a diagnostic to llvm::errs().
  void PrintMessage(SMLoc Loc, DiagKind Kind, const Twine &Msg,
                    ArrayRef<SMRange> Ranges = {},
                    ArrayRef<SMFixIt> FixIts = {},
                    bool ShowColors = true) const;

/// Emits a manually-constructed diagnostic to the given output stream.
  ///
  /// \param ShowColors Display colored messages if output is a terminal and
  /// the default error handler is used.
  void PrintMessage(raw_ostream &OS, const SMDiagnostic &Diagnostic,
                    bool ShowColors = true) const;

/// Return an SMDiagnostic at the specified location with the specified
  /// string.
  ///
  /// \param Msg If non-null, the kind of message (e.g., "error") which is
  /// prefixed to the message.
  SMDiagnostic GetMessage(SMLoc Loc, DiagKind Kind, const Twine &Msg,
                          ArrayRef<SMRange> Ranges = {},
                          ArrayRef<SMFixIt> FixIts = {}) const;

/// Prints the names of included files and the line of the file they were
  /// included from. A diagnostic handler can use this before printing its
  /// custom formatted message.
  ///
  /// \param IncludeLoc The location of the include.
  /// \param OS the raw_ostream to print on.
  void PrintIncludeStack(SMLoc IncludeLoc, raw_ostream &OS) const;
};

/// Represents a single fixit, a replacement of one range of text with another.
class SMFixIt {
  SMRange Range;

std::string Text;

public:
  SMFixIt(SMRange R, const Twine &Replacement);

SMFixIt(SMLoc Loc, const Twine &Replacement)
      : SMFixIt(SMRange(Loc, Loc), Replacement) {}

StringRef getText() const { return Text; }
  SMRange getRange() const { return Range; }

bool operator<(const SMFixIt &Other) const {
    if (Range.Start.getPointer() != Other.Range.Start.getPointer())
      return Range.Start.getPointer() < Other.Range.Start.getPointer();
    if (Range.End.getPointer() != Other.Range.End.getPointer())
      return Range.End.getPointer() < Other.Range.End.getPointer();
    return Text < Other.Text;
  }
};

/// Instances of this class encapsulate one diagnostic report, allowing
/// printing to a raw_ostream as a caret diagnostic.
class SMDiagnostic {
  const SourceMgr *SM = nullptr;
  SMLoc Loc;
  std::string Filename;
  int LineNo = 0;
  int ColumnNo = 0;
  SourceMgr::DiagKind Kind = SourceMgr::DK_Error;
  std::string Message, LineContents;
  std::vector<std::pair<unsigned, unsigned>> Ranges;
  SmallVector<SMFixIt, 4> FixIts;

public:
  // Null diagnostic.
  SMDiagnostic() = default;
  // Diagnostic with no location (e.g. file not found, command line arg error).
  SMDiagnostic(StringRef filename, SourceMgr::DiagKind Knd, StringRef Msg)
      : Filename(filename), LineNo(-1), ColumnNo(-1), Kind(Knd), Message(Msg) {}

// Diagnostic with a location.
  SMDiagnostic(const SourceMgr &sm, SMLoc L, StringRef FN, int Line, int Col,
               SourceMgr::DiagKind Kind, StringRef Msg, StringRef LineStr,
               ArrayRef<std::pair<unsigned, unsigned>> Ranges,
               ArrayRef<SMFixIt> FixIts = {});

const SourceMgr *getSourceMgr() const { return SM; }
  SMLoc getLoc() const { return Loc; }
  StringRef getFilename() const { return Filename; }
  int getLineNo() const { return LineNo; }
  int getColumnNo() const { return ColumnNo; }
  SourceMgr::DiagKind getKind() const { return Kind; }
  StringRef getMessage() const { return Message; }
  StringRef getLineContents() const { return LineContents; }
  ArrayRef<std::pair<unsigned, unsigned>> getRanges() const { return Ranges; }

void addFixIt(const SMFixIt &Hint) { FixIts.push_back(Hint); }

ArrayRef<SMFixIt> getFixIts() const { return FixIts; }

void print(const char *ProgName, raw_ostream &S, bool ShowColors = true,
             bool ShowKindLabel = true) const;
};

} // end namespace llvm

#endif // LLVM_SUPPORT_SOURCEMGR_H

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Editing: SourceMgr.h

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